diff --git a/b2/test/curr b/b2/test/curr
new file mode 100755
index 0000000..6a6ae3e
--- /dev/null
+++ b/b2/test/curr
@@ -0,0 +1,52 @@
+#!/bin/bash
+. ./Common
+
+###############################################################################
+
+tst "currency: one currency" <<EOF
+; /* no hierarchy */
+!-x
+GBP  USD 0.615219
+EOF
+
+expect <<EOF
+EOF
+
+#------------------------------------------------------------------------------
+
+tst "currency: two currencies" <<EOF
+; /* no hierarchy */
+!-x
+EUR  USD 1.3214 GBP 1.62542
+GBP  USD 0.615219
+EOF
+
+expect <<EOF
+EOF
+
+#------------------------------------------------------------------------------
+
+tst_fail "currency: duplicate currency" <<EOF
+; /* no hierarchy */
+!-x
+GBP  USD 0.615219
+GBP  USD 0.615219
+EOF
+
+expect <<EOF
+x:2: exchange GBP -> USD is already defined
+EOF
+
+#------------------------------------------------------------------------------
+
+tst_fail "currency: duplicate exchange rate" <<EOF
+; /* no hierarchy */
+!-x
+EUR  USD 1.3214 USD 1.3214 
+EOF
+
+expect <<EOF
+x:1: exchange EUR -> USD is already defined
+EOF
+
+###############################################################################